For the record, my favorite blogger is Bob Collins. But close upon Collins’ heels comes Andrew Sullivan, who more or less invented the modern political blog. If you don’t read him, you should. Three reasons: He is ideologically unpredictable; he is tireless, and he always addresses the hot topic of the day. Two more: He’s a brilliant intellect and a wonderful writer. And a final one, maybe the most significant: He is a truly principled human.